Greatest Common Factor of 78, 21, 560

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 78, 21, 560 by common division method
• Greatest Common Factor of 78, 21, 560 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 560

List of positive integer factors of 560 that divides 560 without a remainder.

1,2,4,5,7,8,10,14,16,20,28,35,40,56,70,80,112,140,280,560

Greatest Common Factor

We found the factors 78,21,560 . The biggest common factor number is the GCF number.
So the greatest common factor 78,21,560 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 99, 96, 331
• GCF of 44, 12, 137
• GCF of 69, 71, 453
• GCF of 75, 85, 814
• GCF of 74, 35, 623

1. What is the GCF of 78, 21, 560?

Answer: GCF of 78, 21, 560 is 1.

2. How to Find the GCF of 78, 21, 560

Answer: Greatest Common Factor(GCF) of 78, 21, 560 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(78, 21, 560) = 1.